v3.26.1
Note 4 - Debt (Details Textual) - USD ($)
1 Months Ended
May 02, 2024
Mar. 31, 2026
Jun. 30, 2026
Dec. 31, 2025
Aug. 08, 2025
Minimum [Member]          
Debt Instrument, Security Collateral Percentage 80.00%        
BancFirst Loan Agreement [Member]          
Debt Instrument, Face Amount $ 20,000,000        
Line of Credit Facility, Commitment Fee Percentage 0.50%        
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.25%        
Line of Credit Facility, Commitment Fee Amount $ 100,000        
Debt Issuance Costs, Gross $ 146,000        
Debt Instrument, Basis Spread on Variable Rate 0.50%        
Debt Instrument, Variable Rate, Floor Rate 4.50%        
Debt Instrument, Covenant, Debt Service Coverage Ratio 1.2        
Debt Instrument, Covenant, Current Ratio 1        
Long-Term Debt, Gross     $ 5,800,000 $ 5,800,000  
Debt Instrument, Interest Rate, Stated Percentage     7.25% 7.25%  
Amended BancFirst Loan Agreement [Member]          
Debt Issuance Costs, Gross         $ 103,000
Line of Credit Facility, Current Borrowing Capacity         10,000,000
Debt Instrument, Fee Amount         50,000
Debt Issuance Costs, Gross, Initially Capitalized         56,000
Debt Issuance Costs, Net         $ 47,000
Debt Instrument, Covenant, Percentage of Net Present Value   20.00%      
Debt Instrument, Covenant, Net Present Value, Discount Percentage   9.00%      
Debt Instrument, Covenant, Hedge Percentage   50.00%      
Debt Instrument, Covenant, Net Present Value, Utilization Percentage   30.00%